Press



July 30, 1929. R. T. ANDERSON 1,722,882

PRESS Filed May 25, 1928 2 Sheets-Sheet 1 EinuenJ'or July 3 1929- R. T. ANDERSON PRESS Filed May 25, 1928 2 Sheets-$heet 2 u V l \V, 1 a I I Patented July 30, 1929.

UNITED STATES PATENT OFFICE.

RAYMOND '1'.

ANDERSON, or CLEVELAND,

OHIO, ASSIGNOR TO THE V. I). ANDERSON COMPANY, OF CLEVELAND, OHIO, A GORPORATION OF OHIO.

PRESS.

' Application'filed May 25,

This invention pertains to improvements in presses and more particularly presses of the worm or screw type, such for instance as is shown in the Anderson Patents Numbers 5 829,314 and 829,315, dated August 21st,

1906, though of course the invention is applicable to other types and forms.

The invention pertains more particularly to an improved shell or barrel for a press of the type disclosed in said patents and has for its main object. the simplification of the barrel construction while at the same time insuring greater rigidity and the provision of a greater number of drainage opemngs 1 in the barrel between the bars. The arrange- V ment, moreover, permits the employment of a greater numberof plain barrel bars for the same size barrel than could be employed under the older constructions.

embodies a plurality of transversely extending frame elements each provided with a semi-circular recess within which the shell bars are mounted, there being a plurality of 25 these frame elements arranged in spaced relation to each side of the center of the shell. In other words, a pair of these frame elements, oppositely arranged, will produce a circular opening in which the shell bars are arranged in circular series.

Under the older constructions it was com mon to employ a series of frame bars, three for each frame element, which-bars extendi longitudinally. of the shell, the outermost pair or those adjacent the edge of the frame carrying what is known as shoe bars, while the intermediate one carries the key bar or wedge-like element. The ordinary knife bars, common to pressesof this type, were located between the shoe bars where they stood opposite each' other at the edges of the frame members.

Under the present construction the intermediate frame bars are done away with en more, certain bars, hereinafter termed presbars are contoured to substantially conform The shell or barrel of the present press" tirely as are alsofthe key bars. Further-,

.14 upon which the usual barrel 'bars 15 are seated and held.

Again, abutment bars, as they may be termed, are present and these bars are also so shaped as to afford a drainage opening between one face thereof and the face of the next adjacent barrel bar.

In the drawings,

Figure 1 is a sectional elevation of so much of the press as is necessary to an un derstanding of the structure,

Figure 2 a perspective view of a portion of the pressure bar with the associated frame connecting bar,

Figure 3 a transverse vertical sectional view, on an enlarged scale, taken on the line III-III of Figure 1, and

Figure 4 a transverse sectional view of one of the pressure bars.

In the drawings 1 and 2 denote the usual frame members which are spaced apart and interconnected by tie rodsas 3 and 4.

At the head or intake end of the machine,

there is provided av feed hopper 5, While at theopposite end there is a member 6 through which the cake is discharged. A shaft 7 extends through the structure, said shaft carrying the usual feed worm 8, the separated compression screws 9 and sleeves 10 and 11. A cone 12 overlies the sleeves and lies adjacent the discharge end of the barrel. The feed worm and shaft may be driven in the usual manner.

The shell of the press lies between the hopper member 5 at one end and the member 6 and its inset wear element 6 at the opposite end and surrounds the shaft and the members or elements carried thereby.

As under the former constructions there is provideda series of frame members 13 and 13, said members being arranged in pairs, standing edgeto edge, and the pairs, of which ten are shown in Figure 1, standing in spaced relation to each other.

Said members are each formed at their inner edges with a semicircular bearing face forming As will be seen upon reference to Figure 3 through the longitudinal bars 28 and a secured in place by nut 32.

1 portion 32 at its outerend, is formed on one Clamping bars 16 and 17, and 18 and 19 bearing against flat faces formed on the members 13 and 13 together with the studs 20 and 21 hold the frame members in place. Longitudinally extending tie rods 22 and 23 also serve to hold the frame members in each series in their proper spaced relation at all times.

Each frame member is cut away at one end of the curved seating face 14 and a bar 24, termed an abutment bar, is seated in said cut away portion and secured in place by machine screws 25. Such bar of course extends throughout the series of frame members and is secured to each one thereof.

the bar is ofsuch depth that its inner edge extends inwardly to the same extent as the v V l barrel bars 15.

i The bar 24 is also recessed or cut away from the side face adjacent its inner edge to receive the knife bar 26, the knives or inwardly projecting members 27 whereof ex-- '3 and 4, and denoted generally by 30. The A bar is attached to the longitudinally extend in-g tie bar 28 by studs 30 which pass are Pressure bar 30 at its inner portion is reduced in thickness and given a taper form. A series of ribs 31, each having a beveled face of the pressure bar, said beveled portions' contacting the adjacent face of the knife bar 26 when the parts are brought to their final assembled position as shown in Figure 3. These ribs, while holding the knife bars in place afford drainage therebetween. Drainagespace is also present between the opposite face of the member 30 and the adjacent barrel bar 15.

' As is usual in building up the press barrel, suitable spacers as 33 will be located between the various bars. It will also be noted that the bar-s30 are not continuous throughout the length of the barrel but are 7. formed of a series of sections.

This is also 1 true of the bars 15 as is usual.

.As will be seen upon reference to Figure 3, drainage openings are provided between the various bars 15, 24 and 30 whereas in the I prior arrangement above referred to drainage was not had between some of the frame bars and adjacent elements.

Compared to a barrel of the same size built under the old construction the present invention gives 30% more drainage.

The present arrangement assures that the drainage slots (openings between any two bars) are equally spaced around the, barrel thus evenly draining the material being pressed and making a uniform cake. The increased drainage area permits one to greatly increase the speed'of pressing; thus for a given period of time approximately 30% more material may be treated than could be done with the old barrel arrangement with the resultant cake equally as dr in oil or fat.

What is claimed is: V r 1 1 e 1. A shell or barrel for presses embodying 8 a series of bars arranged in circularseries; means for holding the same in place, com prising a pair of oppositely disposedpressure barshaving a portion extending into the series and forming a part thereof; supplemental bars also extending into the series; and knife bars held between each pair of pressure and supplementalbars.

2. A shell or barrel for presses composed of a series of bars standing in circular series and embodying at least in one portion thereofa pair of oppositely disposed bars secured to fixed members and each having an; inwardly'extending portion forming a part of the circular series, one of said inwardly projecting portions having a recess formed in that face opposite the other inwardly extending portion which said last'named portion is formed with a series of spaced ribs; and a knife bar seated in the recess afore- 1 0 said and bearing against the ribs.

3. In a press :the combination of .a series of oppositely disposed frame members, said members each having a semicircular. recess formed in that face which stands opposite 1 the opposite companion member; a bar extending longitudinally of each series -of members, said bar being secured to said members adjacent one end of the recess aforesaid; a second bar secured to the first 1 bar, said second bar having an inwardly projecting member; a third bar secured to each series of frame members adjacent the opposite end of the recess, said bar extending inwardly thereof andprovided wit-h a recess 1 in its side face; a knife bar seated in-such recess; a series of barrel bars held between the inwardly projecting portions of the bars aforesaid;-and means for securingv the frame members together.

4; A shell for a compression pressformed of duplicate sections to'each side of its longitudinal center, each section comprising a series of spaced frame elements, each ele ment having a semicircular recess formed 125 in a face thereof; a bar seated and secured in a recess formed in each frame element adjacent one'end of the semicircular recess;

tween the second and third bars; a knife bar mounted in a recess formed in the side face of each of the third bars; and means for se- 10 curing the duplicate sections together.

In testimony whereof I have signed my name to this specification.

RAYMOND T. ANDERSON. 

